Please use this identifier to cite or link to this item: https://doi.org/10.1088/2058-9565/aa523d
Title: Local reversibility and entanglement structure of many-body ground states
Authors: Kuwahara, T
Arad, I 
Amico, L 
Vedral, V 
Keywords: Ground state
Quantum interference phenomena
Temperature
Entanglement entropy
Low temperature physics
Macroscopic quantum phenomena
Many-body systems
Quantum complexity class
Quantum many-body systems
Quantum phenomena
Specific properties
Quantum entanglement
Issue Date: 2017
Citation: Kuwahara, T, Arad, I, Amico, L, Vedral, V (2017). Local reversibility and entanglement structure of many-body ground states. Quantum Science and Technology 2 (1) : 15005. ScholarBank@NUS Repository. https://doi.org/10.1088/2058-9565/aa523d
Rights: Attribution 4.0 International
Abstract: The low-temperature physics of quantum many-body systems is largely governed by the structure of their ground states. Minimizing the energy of local interactions, ground states often reflect strong properties of locality such as the area law for entanglement entropy and the exponential decay of correlations between spatially separated observables. Here, we present a novel characterization of quantum states, which we call 'local reversibility'. It characterizes the type of operations that are needed to reverse the action of a general disturbance on the state. We prove that unique ground states of gapped local Hamiltonian are locally reversible. This way, we identify new universal features of many-body ground states, which cannot be derived from the aforementioned properties. We use local reversibility to distinguish between states enjoying microscopic and macroscopic quantum phenomena. To demonstrate the potential of our approach, we prove specific properties of ground states, which are relevant both to critical and non-critical theories. © 2017 IOP Publishing Ltd.
Source Title: Quantum Science and Technology
URI: https://scholarbank.nus.edu.sg/handle/10635/178695
ISSN: 20589565
DOI: 10.1088/2058-9565/aa523d
Rights: Attribution 4.0 International
Appears in Collections:Elements
Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
10_1088_2058-9565_aa523d.pdf3.11 kBAdobe PDF

OPEN

NoneView/Download

SCOPUSTM   
Citations

11
checked on Aug 14, 2022

Page view(s)

142
checked on Aug 4, 2022

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons